| 矩形网格上VOF运动界面重构的流体体积分数保持法 |
| |
| 引用本文： | 王如云,陈萍萍,班长英.矩形网格上VOF运动界面重构的流体体积分数保持法[J].计算物理,2008,25(4):431-436. |
| |
| 作者姓名： | 王如云 陈萍萍 班长英 |
| |
| 作者单位： | 1. 河海大学水文水资源与水利工程科学国家重点实验室, 江苏 南京 210098;2. 烟台南山学院 基础部, 山东 烟台 265700;3. 山东省东营市胜利一中数学组, 山东 东营 257000 |
| |
| 基金项目： | 水文水资源与水利工程科学国家重点实验室开放研究基金
,
中教育部科学技术研究重点项目
,
江苏省普通高等学校高新技术产业发展项目 |
| |
| 摘 要： | 针对处理运动界面问题的流体体积函数(VOF)法,提出一种新的流体体积分数保持界面重构算法.该方法在单个网格内用斜线段近似运动界面,并要求相邻网格内的斜线段在公共边上的交点重合,通过保持网格内的流体体积分数不变,在边界网格上建立非线性方程组,通过求解非线性方程组,确定运动界面边界线与网格线的交点位置,最终重构出运动界面的形状.应用算例模拟结果表明,该方法能够高精度,较少尖点地重构运动界面,证实了该方法的有效性和可行性.
|
| 关 键 词： | VOF 界面重构 流体体积分数保持 矩形网格 |
| 收稿时间： | 2007-01-23 |
| 修稿时间： | 2007-10-30 |
Keeping Volume Fraction of Fluid in Reconstructing Moving-interfaces of VOF on Rectangular Meshes |
| |
| WANG Ruyun,CHEN Pingping,BAN Changying.Keeping Volume Fraction of Fluid in Reconstructing Moving-interfaces of VOF on Rectangular Meshes[J].Chinese Journal of Computational Physics,2008,25(4):431-436. |
| |
| Authors: | WANG Ruyun CHEN Pingping BAN Changying |
| |
| Institution: | 1. State Key Laboratory of Hydrology-water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China;2. General Study Program, Yantai Nanshan College, Yantai 265700, China;3. Mathematics Group, NO.1 Middle School of Shengli Oil Field, Dongying 257000, China |
| |
| Abstract: | A moving interface reconstructing algorithm keeping volumed fraction of fluid in the volume of fluids(VOF) method is presented.The moving interface is approximated by a diagonal line of a grid,and two diagonal lines located in adjacent grids intersect on a public side.By keeping constant volume fraction of fluid in each grid,nonlinear equations are built on boundary grids.Location of intersecting points of moving-interfaces with grid sides are decided by solving equations.The shape of moving-interfaces is reconstructed.The method simulates accurately moving interfaces with fewer cusps.Its availability and efficiency are demonstrated. |
| |
| Keywords: | volume of fluids reconstruction of moving interface keeping volume fraction of fluid rectangular grid |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《计算物理》浏览原始摘要信息 |
| 点击此处可从《计算物理》下载免费的PDF全文 |
|
